Update dependencies, add character and scenario management features

- Upgrade Quarkus and OpenAPI generator versions in pom.xml.
- Introduce CharacterService and ScenarioService for managing character and scenario templates.
- Implement CharacterEntity and ScenarioEntity JPA entities with corresponding repositories.
- Add RESTful APIs for listing and retrieving characters and scenarios.
- Create JSON converter for persisting lists of strings in the database.
- Update OpenAPI specification to include new endpoints for character and scenario management.
- Add Liquibase migration scripts for character and scenario tables.
- Configure application settings for Hibernate ORM and database generation.

src/main/resources/openapi-templates/Java/beanValidation.mustache

@@ -0,0 +1,14 @@
+{{#required}}
+{{^isReadOnly}}
+ @NotNull
+{{/isReadOnly}}
+{{/required}}
+{{#isContainer}}
+{{! Do not add @Valid on container; we use type-argument @Valid in the pojo (List<@Valid T>) to fix HV000271 }}
+{{/isContainer}}
+{{^isContainer}}
+{{^isPrimitiveType}}
+ @Valid
+{{/isPrimitiveType}}
+{{/isContainer}}
+{{>beanValidationCore}}